REFLECTOR: Flight testing
Mark Magee
edjonesbrady at gmail.com
Fri May 11 09:44:43 CDT 2012
I had this exact problem with my Long EZ years ago. I think the problem is exacerbated with a cruise pitched prop. My problem was fixed by a weekend dedicated to throttle linkage to move my idle down from above 700 RPM to down around 550 on the ground.
Instantly shortened my landing rolls -significantly-.
Mark B. Magee
Sent from IPhone 4
On May 10, 2012, at 6:59 PM, Terrence Miles <terrence_miles at hotmail.com> wrote:
> I run on one mag and one EI. I agree having the idle RPM up too much adds to landing roll (or to brake wear). Been there. Done that. Unless you are a better builder than me, there is likely some slop in your throttle cable. I have taught myself and “yank again” after touch down to be sure I am at mine idle possible. Be gentle on the controls but forceful on the throttle cable. Doing at this in flight: While forward speed driving the prop would likely prevent an engine stoppage in the air, still while on the ground after the pre-take off engine/prop check, I yank the heck out of trying to close the throttle to try and cause a low RPM engine starvation. If it happens I goose up the idle setting, so it does not. Just my 2 cents.
> Terry
>
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Douglas Holub
> Sent: Thursday, May 10, 2012 11:29 AM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Flight testing
>
> I'll try that. I also have one mag and a Plasma III.
> ----- Original Message -----
> From: Karl J. Warner
> To: reflector at tvbf.org
> Sent: Thursday, May 10, 2012 11:46 AM
> Subject: Re: REFLECTOR: Flight testing
>
> Mine idles at 800 with the mag and Rose EI on and 600 on the mag only. For short field I'll shut off the EI once I commit to land and this solved the engine quitting problem I had with everything turned down to 600 or so. This is on a IO-360 btw.
> On May 10, 2012, at 11:27 AM, reflector-request at tvbf.org wrote:
>
>
> From: "Douglas Holub" <douglas.holub at gmail.com>
> Date: May 10, 2012 11:07:57 AM EDT
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Subject: Re: REFLECTOR: Flight testing
> Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>
>
> Same with me. When it slows down below 50 kts I need to give it a little gas or the engine quits.
>
> ----- Original Message ----- From: "Scott Derrick" <scott at tnstaafl.net>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Thursday, May 10, 2012 10:41 AM
> Subject: Re: REFLECTOR: Flight testing
>
>
>
> David a real need for V's is an idle rpm much nearer 600 or even lower. The difference in landing distance between an idle of 800 and 600 is astounding!
>
> I actually set mine for 600-550, which is spec. I have to be careful after landing when the roll out slows to below 50 knots to give the throttle a quick blip as sometimes the engine may stop, but I put up with that as it really shortens the landing distance.
>
> Scott
>
>
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